Abstract: An elevation kit that can support a mattress frame or mattress support is movable between a flat position in which the mattress support is generally horizontal and a raised position in which the mattress support is canted from a first end to a second end. The elevation kit comprises a base, a locking element, a lever member, a tilt member, and a drive assembly. The base comprises pivotally connected head and foot portions that can be folded for compact shipping, with the head portion nesting within the foot portion. The elements of the elevation kit are structured such that the elevation kit can be shipped in a folded configuration and easily assembled by a customer or end user using a minimal number of fasteners and without requiring specialized tools.

Abstract: A bed frame has a rigid peripheral part formed by first and second relatively pivotal, generally planar, and rigid sections joined together at a first axis and pivotal between a generally coplanar position lying in a single plane and a not coplanar folded position. This peripheral part also has an outer face extending transversely of the plane. A respective stiff support part is secured within each section. The cover has a tensioning strip on the outer face of the peripheral part and a flexible web panel overlying and lying on the sections of the peripheral part, in the coplanar position of the sections with edges of the panel overlying the strip on the outer face of the peripheral part and extending under the peripheral. The panel further has at the first axis one or more elastic parts or regions, means releasably fixing the panel edges to the tensioning strip.

Abstract: A headboard or footboard frame is mountable on an end of a mattress frame and adapted to carry a detachable headboard or footboard frame that, in an intended use position, forms a decorative support at a right angle to a support surface of the mattress frame and projecting from a head or foot end of the mattress frame. The headboard or footboard frame has two subframes pivotally connected to each other for movement between a transport position with the subframes folded on top of each other and a use position with the subframes are folded apart next to each other and lying in a common plane. Each subframe has an outer edge attached to first bars that are offset in the transport position to a central plane and that in the use position project at a right angle from the common plane of the frame parts.

Abstract: An elevation kit that can support a mattress frame or mattress support is movable between a flat position in which the mattress support can be horizontal (so that the mattress can be relatively horizontal) and a raised position in which the mattress support can be canted from a first end to, The elevation kit comprises a base, a locking element, a lever member, and a tilt member. The elements of the elevation kit are structured such that the elevation kit is easily assembled from its shipped configuration by a customer/user.

Abstract: A beadstead has a circumferential main outer frame, a dimensionally stable support element attached or attachable to the main outer frame, a cover surrounding the main outer frame and the support element and having outer edges, a multipart and profiled circumferential retaining strip wrapped by the edges of the cover that are folded over and project beyond the retaining strip for fixation under the retaining strip. The retaining strip extend transversely to a plane of the support and having a first leg projecting parallel to the support, spaced from the plane, and extending below the support. Clips fastened to the outer edges of the cover fit on the first leg to secure the edges to the frame in a desired position.

Abstract: A beadstead has a circumferential main outer frame, a dimensionally stable support element attached or attachable to the main outer frame, a cover surrounding the main outer frame and the support element and having outer edges, a multipart and profiled circumferential retaining strip wrapped by the edges of the cover that are folded over and project beyond the retaining strip for fixation under the retaining strip. The retaining strip extend transversely to a plane of the support and having a first leg projecting parallel to the support, spaced from the plane, and extending below the support. Clips fastened to the outer edges of the cover fit on the first leg to secure the edges to the frame in a desired position.

Abstract: A sifter for separating coarse particles from a particle-carrying stream during the manufacture of wood fiber panels has a housing forming a chamber. The housing also has a material inlet for admitting the particle-carrying stream to the chamber, a front wall formed with an upper air inlet below the material inlet for admitting a respective upper air stream to the chamber and a lower air inlet below the upper inlet for admitting a respective lower air stream to the chamber, an exhaust-air outlet for conveying air and fine particles from the chamber, and a coarse-particle outlet for conveying coarse particles out of the chamber. The front wall of the housing has between the upper air inlet and the lower air inlet a portion with an inwardly concavely curved shape that forms a support vortex that supports the upper air stream entering through the upper feed air inlet in the chamber of the housing between the upper air inlet and the lower air inlet.

Abstract: A sifter for separating coarse particles from a particle-carrying stream during the manufacture of wood fiber panels has a housing forming a chamber. The housing also has a material inlet for admitting the particle-carrying stream to the chamber, a front wall formed with an upper air inlet below the material inlet for admitting a respective upper air stream to the chamber and a lower air inlet below the upper inlet for admitting a respective lower air stream to the chamber, an exhaust-air outlet for conveying air and fine particles from the chamber, and a coarse-particle outlet for conveying coarse particles out of the chamber. The front wall of the housing has between the upper air inlet and the lower air inlet a portion with an inwardly concavely curved shape that forms a support vortex that supports the upper air stream entering through the upper feed air inlet in the chamber of the housing between the upper air inlet and the lower air inlet.

Abstract: A sifter serves for separating coarse particles from a particle-carrying stream during the manufacture of wood material panels, in particular wood fiber panels. The sifter has a housing forming a chamber and having a material inlet for admitting the particle-carrying stream to the chamber, at least one air inlet below the material inlet for admitting an air stream to the chamber, an exhaust-air outlet for conveying air and fine particles from the chamber, and a coarse-particle outlet for conveying coarse particles out of the chamber. An upper front wall of the housing above the air inlet is oriented at least partially at an angle to the vertical. An upper edge of the air inlet is either vertically aligned above a lower edge of the air inlet or projects by an amount beyond the lower edge into the chamber.